沙角衣藻的抗菌活性研究  

A study of the antibacterial activity of Chlamydomonas sajiao Lewin

作　　者：吴巧玉[1] 兰利琼[1] 刘萍[1] 耿晓娟[1] 傅华龙[1] 

机构地区：[1]四川大学生命科学学院,成都610064

出　　处：《四川大学学报（自然科学版）》2008年第1期194-198,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：四川大学青年科学基金(200320)

摘　　要：在液体培养基中添加不同剂量的沙角衣藻(Chlamydomonas sajiaoLewin),用比浊法测定7种细菌和7种植物病原真菌在其中的生长量.结果显示,沙角衣藻对供试的7种细菌与7种植物病原真菌具有高效抗菌活性,并随藻体浓度的增加抗菌活性而增强.对各菌的抑菌效果表明:对细菌的起始抑制浓度为0.2×10-3g/mL^0.5×10-3g/mL,完全抑制浓度为30×10-3g/mL^40×10-3g/mL;对真菌的起始抑制浓度为1.5×10-3g/mL^2×10-3g/mL,完全抑制浓度为60×10-3g/mL^80×10-3g/mL,抗细菌作用强于抗真菌作用.Chlamydornonas sajiao Lewin with different doses were added to liquid culture medium, the living number of 7 different bacterium and 7 different plant fungal pathogens were detected with the method of turbidimetry. The results showed that Chlamydornonas sajiao Lewin had high antibacterial activity on the 7 different bacterium and 7 different plant fungal pathogens tested and the effects of inhibition were raised with concentrations. The origination inhibition concentrations were 0.2 × 10^-3 g/mL～0.5× 10^-3 g/mL and full inhibition concentrations were 30×10^-3 g/mL-40×10^-3 g/mL against bacterial growth; but the origination inhibition concentrations were 1.5 ×10^-3 g/mL～2 × 10^-3 g/mL and full inhibition concentrations were 60 ×10^-3 g/mL～80 × 10^-3 g/mL against fungal growth. Therefore it had more antibacterial activity against bacterium than fungus.

关 键 词：沙角衣藻 抗菌活性 起始抑制浓度 完全抑制浓度 

分 类 号：Q945[生物学—植物学]